What Weiwei's mother means is that girls "pick someone else before they turn 25, and others pick them after they turn 25." Therefore, when the bell rang in the Year of the Rabbit, what Weiwei heard was not the auspicious New Year's words, but that you must get married this year.
Weiwei, who is 25 years old and has no boyfriend yet, is a girl who looks like a hedgehog. It is really difficult for her to get married within a year, so Weiwei has really experienced a lot with the passing of 25 years.